| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d2bb724dd58cbb2a73b244e79b0c9e42 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C407-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C409-30 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C409-30 |
| filingDate |
1969-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1972-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5697d843c582a8fc8465910a736934bf |
| publicationDate |
1972-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3655738-A |
| titleOfInvention |
Preparation of diperphthalic acids |
| abstract |
DIPERPHTHALIC ACIDS ARE PREPARED FROM HYDROGEN PEROXIDE AND THE PHTTHALIC ACID IN AN ALKANESULFONIC ACID REACTION MEDIUM BY USING FINELY SUBDIVIDED PHTHALIC ACID WITH A PARTICLE DIMENSION BELOW 0.1 MILLIMETER, MORE NOTABLY IN THE RANGE OF FROM 0.0001 TO 0.1 MILLIMETER. A UNIQUE CRYSTAL FORM OF DIPERISOPHTHALIC ACID IS OBTAINED, FOR EXAMPLE, BY REACTION OF ISPPHTHALIC ACID OF LESS THAN 0.044 MILLIMETER (LESS THAN 325 MESH). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4659519-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4244884-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3969072-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4094808-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4655781-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4278615-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5985815-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2930546-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4052443-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4314949-A |
| priorityDate |
1969-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |